My model 600 Aprilaire humidifier runs in test mode only. Does not run when humidity level is set above actual house humidity. Has external temp. probe for auto control.
Can you offer suggested remedy?
Since the control brings the humidifier on in the test mode, this tells us that the control and humidifier are working properly. If you continue to experience problems or have any further questions regarding this, please feel free to contact our technical support department at 1-800-334-6011 at your earliest convenience.